For many it was a revelation that the US government/media complex has been systematically lying to them about China. They are arriving at an acceptance that the US is a shabby declining empire dominated by a corrupt elite and heartless broligarchs. Always a good thing to bump up against reality, imho.
However I think that the US-based population of Tiktok refugees will subside once the novelty effect has worn off. Probably shrink by half in a month. Hopefully there will remain a positive lingering effect.